Brake for talking-machines.



BRAKE FOR TALKINGMAGHINES. APPLICATION 511120 AUG. 15, 1914.

1 1 20%., 59. Patented Nov. 14, 1916.

WILLIAM F. GRUPE, F JERSEY GITY,.1\TEW JERSEY, ASSIGNOR TO VANOPHONECOMPANY, INC.

BRAKE FOR TALKING-MACHINES.

Specification of Letters Patent.

Patented NOV. 14, 1916,.

Application filed August 15, 1914. Serial No. 856,914..

' citizen of the United States of America, and

residing at Jersey City, county of Hudson, State of New Jersey,have madecertain new and useful Improvements in Brakes for Talking-Machines, ofwhich the following is a specification. I

This invention relates to brakes for talking machines, phonographs andthe like.

An object of my invention is to provide suitable mechanism forautomatically braking the rotating table of a talking machine,phonograph or the like, and preferably by suitable provision of meanswhereby the rotating table is arrested when the movable arm is moved toits off or non-playing position, and to release the brake when themovable arm is moved from its oil or non-playing position. Also,preferably such provision of means comprises an extension or projectioncooperating with the braking member and serving to support the movablearm when in such off or non playing position. In such preferred forms ofmy, invention, the movable arm is provided with reliable means forsupporting the same when in such off or non-playing position and theweight of the movable arm is utilized to advantage in maintaining thebraking member in its braking position.

Other features and objects of my invention will be more fully understoodfrom the :following description and accompanying drawings, in which a,Figure 1 is a top plan view of one form of my invention; and Fig. 2 isa detail front elevation of the movable arm and extension carriedthereby and certain other parts shown in Fig. 1.

Referring to Fig. 1, the movable tone arm 12 is shown as mounted onto ahollow standard or socket 14 projecting upwardly above the base orsupport 1. Preferably. such mounting is constructed to permit swingingof the tone arm in a substantially horizontal plane and to also permitto a limited extent .oscillatory movement of the tone arm transverselyto the horizontal plane. To effect such movement, the tone arm may beprovided with the oppositely disposed, laterally extendingcirculariugs-lfi. 15, adapted to be aeceived within the annular groove16 distosed within the standard or socket 14. The

portion of the tone arm 12 circumferentially adjacent said lugs 15 ispreferably spheroidal or otherwise curved and the diameter of each saidlugs 15 is slightly less than the width of said groove 16, whereby topermit the conjoint horizontal and vertical movement of the tone arm 12.

One or more slot openings 18 may be provided for securing the entry ofeach lug 15 into the annular groove 16, as will be understood, and thepartial slots 17 extending lengthwise of the standard or socket let maybe provided for purposes of imparting re- 'siliency to the upperportions of the standard or socket 14. v

The extension or projection 11 is shown as carried rigidly by theswinging arm 12 and extending substantially transverse to the directionof length of the" swinging arm 12. The step 13, preferably having theinclined approach 19, is provided to support the extension or projection11 when the swinging arm is in its off or non-playing provided with theextension 27 carrying a hooker other eccentric means cooperating withsaid projection or extension 11 whereby when the swinging arm 12 is inoff or non-playing position, said braking member 25 is moved intobrakingposition. The braking member 25 is *alsoshown provided with resilientmeans, such as the spring 28, normally tending to move the brakingmember into non-braking position. The stop 29, shown carried by thebraking member 25, limits the movement of the braking member from itsbraking position. The braking member 25 is shown mounted within theguide or sleeve 30, fixed to the base or support 1. Thus, as theswinging arm 12 is moved into its off or non-playing position, theextension or projection 11, in eccentric relation to the hook of theextension 27 causes the braking member 25,, in opposition to theresilient means 28, to move into braking position, and upon movement ofthe swinging arm 12 from its oil' or non-playing position, the extensionor projection 11 is moved free of the hook 27 and permits the spring 28to move the braking member 25 into its non-braking position, determinedby the stop 29 encountering a face of the sleeve 30. When the swingingarm 12 is in its off or non-playing position the extension or projection11 will have rested upon the step 13.

As will be seen from the above, my invention is advantageous in securinga positive braking and non-braking of the turiitable whenever desiredwithout the use of auxiliary releasing and unreleasing means for brakingthe rotating table. Also, the-positive and direct support for the.movable arm insures security of the same when in its ofi or othernon-playing position.

Whereas I have described my invention by reference to specific formsthereof, it will be understood that many changes and modifications maybe made without departing from the scope of my invention.

What I claim-and desire to secure by'Letters Patent is 1. Thecombination with a base, a rotatable table carried thereby, a swingingarm, a movable brake member adapted when in braking position toengagevsaid table, re-

silient means for normally drawing said. braking member from engagementwith said table, an eccentric element carried by said braking member, aprojection controlled by said swinging arm and adapted when" said arm isin a predetermined position to engage said eccentric element to movesaid bral'ring element into braking position and means cooperating withsaid projection to support said arm when said arm is in saidpredetermined position.

2. The combination with a base, of a rotatable table carried thereby, aswinging arm mounted on said base, a movable braking member mountedonsaid base, resilient means normally moving said braking member in adirection to effect disengagement with said table, astop limiting themovement of said braking member in said direction, a hook carried bysaid braking member, a projection carried by said swinging arm andadapted to engage said hook when said arm is iii off position andthereby move said braking element into engagement with said table, andmeans fixed to said base for supporting said projection and therebysupport said arm when said arm is in off position.

3. The combination with a base, of a, rotatable table carried thereby, aswinging arm mounted on said base, a reciprocating braking member, meansfor mounting said braking member on said base, resilient neonate meanstending to move said braking-menuber in a certain direction out ofengagement with said table, a stop limiting the move ment of saidbraking member in said certain direction, .a projection carried by saidarm and adapted to engage said braking member when said arm is in apredetermined position and move said braking member in opposition tosaid resilient means into engagement with said table and means in fixedrelation to said base for supporting said projection and therebysupporting said arm when said arm is in said predetermined position.

4. The combination with a base, of a rotatable table carried thereby, aswinging arm, means for mounting said swinging arm onto said base, amovable braking member adapted to reciprocate in the direction of itslength, a sleeve mounted on said base and controlling the movement ofsaid braking member, a pad at one end of said braking member adapted toarrest said table when said braking member is in braking position,resilient means tending to move said braking member in a certaindirection out of braking position, a stop limiting the movement of saidbraking member in said certain direction, a hook carried by said brakingmember, a projection extending downwardly from said swinging arm andadapted when said arm is in off position to engage said hook and movesaid braking member into braking position and means cooperating withsaid projection to support said-arm when said tone arm is in offposition.

5. The combination with a base, of a rd tatable table carried thereby, aswinging arm, means for mounting said swinging arm Onto said base, abraking member formed of a straight arm, a friction pad carried at oneend of said arm, a hook positioned at the opposite end of said arm, asleeve enveloping said arm, resilient means tending to move said arm outof braking position, a stop carried by said arm, a projection extendingfrom said swinging arm and adapted to engage said hook to move said.braking member into braking position. when said arm is in 0E positionand means coiiperating with said projection to support said arm when inoff position.

6. The combination with a base, of a rotatable table carried thereby, aswinging arm, means for mounting said arm on said base, a brakingmember, a pad carried by said braking member and adapted to arrest saidtable when said braking member is in bralringposition, an elementcarriedby said arm and adapted when said arm is in off position to movesaid braking member into braking position and means for supporting saidarm when in off position.

7, The combination with a base, of a? rotatable table carried thereby, aswinging arm, means for mounting said swinging arm onto said base, abraking member, a pad carried by said braking member and adapted toarrest said table when said braking member 'is in braking position, acam carried by said swinging arm and adapted when said swinging arm isin ofi' position to move said braking member into braking position andmeans for supporting said swinging arm when in off position.

s 8. In 'a device of the class described, the COIILbIIIatIOH of a frame,a revoluble record vice being provided with a body portion which is outof the path of movement of the pin carried by the arm, said pin engagingsaid hook. and operating the locking device to lock the record supportwhen the arm has been moved to a position Where the needle clears theperiphery of the record.

9. The combination with a rotatable table, of a swinging tone arm, abase supporting said table, a brake mounted on said base, resilientmeanstfiding to move said brake in a certain direction to effectnon-braking,

a stop positioned on said base limiting the movement of said brake insaid certain dired tion. a hook carried by said brake and a projectioncarried by said swinging tone arm arranged to engage said hook when saidswinging tone arm is in non-pla'yingposition to thereby move said brakeinto braking Jposi'ti on.

10. The combination with a rotatable table, of a swinging tone arm, abase supporting said table, a reciprocating braking member mounted onsaid base, resilient means tendmg to move said bral mg member in acertain direction to effect non position.

11. The combination with a rotatabletable, of a swinging tone arm, abase supporting said table, a brake mounted on said base, resilientmeans tending to move said brake in a certain direction to effectnonbraking, a stop positioned on said base, a stop carried by said brlgithd adapted to engage said stop on said base to limit the movement ofsaid brake in said certain direction, a hook carried by said brake and aprojection carried by said swinging tone arm arranged to engage saidhook when said swinging tone arm 1n non-playing position to thereby movesaid brake into braking 12. The combination with a base, of a rotatabletable carried thereby, a swinging arm, a braking member, resilient meansfor moving said braking member into nonbraking position, a stop limitingthe nonbraking movement of said braking means, means carried by saidswinging arm for actuating said braking member into braking position andmeans for supporting said swinging arm when in off position.-

13. The combination with a base, of a rotatable table. a swinging armcarried by said base, a braking member, resilient means for moving saidbraking member into nonbraking position. a stop limiting the nonbrakingmovement of said braking means, means carried by said swinging arm foractuating said braking member into braking position and means forsupporting said sninging arm when in off position.

it. The combination with a base, of a 1'0- tatable table, a swingingarm, means for mounting said swinging arm onto said base, a brakingmember,- resilient meansfor-rnovmg said braking member into non-brakingposition, said mounting means acting as astop to limit the non-brakingmovement of said braking member, a projection carried by said swingingarm for moving said bra-k ing member into braking position and means forsupporting said projection and therewith said swinging arm when in offposition.

in testimony whereof I have signed this s ecificat ion. in. the presenceof two subscribing witnesses.

WILLIAM F. GRUPE.

Witnesses HENRY J. LUCKE, SOPHIE M. BAEDER.

